BIOGUARD OPTIMIZER 40#
Enhances water quality, softens water and prevents algae
Works with most sanitizers: chlorine, bromine and biguanide
Reduces cloudiness in water
Can be added to the 3-Step or Once-A-Week 3-Step BioGuard Care System
The addition of algicide is needed for proper pool maintenance. Sanitizers or shock/oxidizers alone may not keep algae at bay and this step is needed to keep your pool completely clear of any growth.